Finding the Fourth Proportional to 120,019.42, 165,628.02 and 83,773.54

Step by Step Solution

1. Step 1: Write the proportion equation
   120,019.42 : 165,628.02 = 83,773.54 : x
2. Step 2: Convert to fraction form
   120,019.42/165,628.02 = 83,773.54/x
3. Step 3: Cross multiply
   120,019.42x = 165,628.02 × 83,773.54
4. Step 4: Simplify right side
   120,019.42x = 13,875,245,558.59
5. Step 5: Solve for x
   x = 13,875,245,558.59/120,019.42
6. Step 6: Final answer
   x = 115,608.34